– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 9 pm Mon 16 Feb Local TimeUpdates in: hr min sUpdate imminent
Issued: 9 pm Mon 16 Feb Local Time
Updates in:
Update imminent hr min s
Issued: 9 pm Mon 16 Feb Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryA dusting of new snow. Freeze-thaw conditions (max 2°C on Tue morning, min -5°C on Wed night). Wind will be generally light. | Days 5–7 Weather SummarySome drizzle, heaviest during Sun afternoon. Freeze-thaw conditions (max 7°C on Sun morning, min -5°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Tuesday 17 | Wednesday 18 | Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | | | | | | | | |  | | | | |  | |
some clouds | some clouds | light snow | cloudy | cloudy | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | cloudy | cloudy | light rain | cloudy | some clouds | light rain | light rain | rain shwrs | |
km/h | |||||||||||||||||||
 |  |  |  |  |  |  | |||||||||||||
— | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | 0.2 | — | — | 0.3 | 1.1 | 6 | |
max °C | -1 | 2 | 0 | -1 | -1 | 0 | -4 | -1 | -1 | -3 | 0 | 1 | 1 | 5 | 6 | 3 | 7 | 6 | 3 |
min °C | -1 | 2 | -1 | -2 | -1 | -2 | -5 | -2 | -4 | -5 | -1 | -1 | -2 | 3 | 4 | 2 | 7 | 5 | 1 |
-4 | 2 | -1 | -2 | -1 | -2 | -5 | -2 | -4 | -5 | -3 | -3 | -4 | 0 | 2 | 0 | 5 | 2 | -1 | |
350 | 800 | 550 | 200 | 350 | 450 | 0 | 200 | 400 | 0 | 400 | 650 | 200 | 1100 | 1650 | 1750 | 2000 | 1700 | 950 | |
Cloud base (m) | 550 | 5400 | 700 | 550 | 550 | 550 | 650 | 600 | 650 | 650 | 600 | 650 | 600 | 1600 | 900 | 600 | 1850 | 1950 | 600 |
 | — | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — | 7:05 | — | — | 7:03 | — | — | 7:01 | — | — |
 | — | — | 5:31 | — | — | 5:34 | — | — | 5:35 | — | — | 5:37 | — | — | 5:38 | — | — | 5:39 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: A dusting of new snow. Freeze-thaw conditions (max 2°C on Tue morning, min -5°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Some drizzle, heaviest during Sun afternoon. Freeze-thaw conditions (max 7°C on Sun morning, min -5°C on Thu night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.